.slider{
    width: 120px;
    height: 100vh;
    background: #7A7A7A;
    position: fixed;
    top:0;
    left: 0;
    z-index: 10;
    padding-top: 65px;
    box-sizing: border-box;
    color:#fff;
}

.slider .menu{
    height: 40px;
    line-height: 40px;
    font-size: 14px;
    padding-left: 15px;
    box-sizing: border-box;
}

.slider .menu_sub{
    font-size: 12px;
    line-height: 30px;
    height: 30px;
    text-indent: 2em;
}

.active{
    background-color: #E6B666;

}